Natural selection needs competition in order to take place.
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Darwin developed The theory of evolution by natural selection.So, to answer you question, all of it!You need to make a distinction between evolution, the change in allele frequency over time in a population of organisms, and natural selection, the nonrandom survival and reproductive success of randomly varying organisms. Natural selection is the main driver of evolution.
Answer 1Many churches of the time posited that god created all the organisms of earth at one time, so that no organism was related except to vary from it's created kind. Darwin showed that through the process of natural selection new species were constantly arising from related organisms.Answer 2Theism rationalizes its beliefs in deities by pointing to the organized nature of nature, claiming that such complexities could not have come about through unguided natural processes. Darwin, with his theory of natural selection, provided just that: an explanation for natural complexities in terms of unguided processes. Basically, while Darwin's theory does not claim that no gods are involved in nature, it did away with the need for any gods to explain the diversity of life.
True
Natural selection cannot fashion perfect organisms •There are at least four reasons why natural selection cannot produce perfection -Organisms are limited by historical constraints -Adaptations are often compromises -Chance and natural selection interact -Selection can only edit existing variations
No, it's the other way around: descent with modification is what you need for natural selection to happen.
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Compete? The need to be a moron. Complete? The lack of natural selection.
Survival of the fittest is a not quite accurate phrase for natural selection. Natural selection is, The non-random survival and reproductive success of randomly varying organisms.
We need vegetation because it gives other animal a place to live. In order to protect the ecosystem of that place and also the gene pool for the survival of future generations
people, rats, and batsYou only need one - its called death.
natural selection occurs when animals need it
Darwin developed The theory of evolution by natural selection.So, to answer you question, all of it!You need to make a distinction between evolution, the change in allele frequency over time in a population of organisms, and natural selection, the nonrandom survival and reproductive success of randomly varying organisms. Natural selection is the main driver of evolution.
Becauase they need to adapt to the new environment to enter the bodies
by having different varieties in your body and how they both need something to survive.
Because that is what evolution is, the tinkering process of natural selection working with what it has against the immediate environment. Evolution does not plan ahead and can not order parts to need, but must take what it has and adapt it to the time and place it is in. So, you are still a tetrapod, a four legged mammal, but you are bipedal due to the selective pressure on humans to stand erect. Natural selection, in the immediate environment, cobbled together an organisms that probably knuckle walked into an organism that walks erect in an obligatory manner.